Figure 1.
Comparison between the genetic and physical maps of the rice chromosome 4. (A) A genetic linkage map. Genetic markers (GM), genetic distance (cM), and centromere (in yellow) are indicated. (B) A physical map. The portions of the 11 BAC contigs covering 34.5 Mb of the chromosome are in orange and the gaps in plain. The physical distance is indicated (Mb). The maps also show a discrepancy of two markers R2502 (3.1 cM) and R2373 (0 cM) between the genetic and physical maps revealed by DNA sequencing and fluorescence in situ hybridization (FISH) analysis (cross lines).
